package ipaddress.utils;

import javax.servlet.http.HttpServletRequest;

/**
 * Created by Administrator on 2017/1/22.
 */
public class WebRequestUtils {
    public static String getRequestIP(HttpServletRequest request){
        String ip = request.getHeader("X-Forwarded-For");
        if(ip == null){
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(ip == null){
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if(ip == null){
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(ip == null){
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if(ip == null){
            ip = request.getRemoteAddr();
        }

        return ip;
    }
}
